Electric shaver having a hair-collecting means and comb



Sept. 26, 1961 D. PINKAS 3,001,282

ELECTRIC SHAVER HAVING A HAIR-COLLECTING MEANS AND COMB Filed March 26, 1956 2 Sheets-Sheet 1 ll/v ii 2W ENTOR. DUI/2'6! R'nkas D. PINKAS Sept. 26, 1961 ELECTRIC SHAVER HAVING A HAIR-COLLECTING MEANS AND COMB 2 Sheets-Sheet 2 Filed March 26, 1956 INVENTOR Dal/6! P572 @6 BY ATTORNEYS United States Patent 3,001,282 ELECTRIC SHAVER HAVING A HAW-COLLECT- ING MEANS AND COMB David Pinkas, 122 Washington St., Norwalk, Conn.

. Filed Mar. 26, 1956, Ser. No. 573,906

9 Claims. (Cl. 3041) The present invention relates to electric shavers and more particularly to a novel cutting head construction, drive means therefor and a cooperating comb construction.

It is an object of the present invention to provide a simplified cutter and a drive therefor which can be readily assembled and will function very efficiently.

Another object of the invention is to provide a novel comb arrangement whereby hairs will be guided into the cutting surface.

A further object of the invention is to provide a unique hair containing means on the cutting head whereby hair is retained in the inner cutter.

These objects are accomplished by providing a cutter with a novel outer cutter comprising a shell of substantially E-shaped cross-section having a bridge across the open end of the E and secured to the center leg of the E and the end legs to form a rigid unit. In the stem of the E on each side of the center leg there are provided longitudinally extending, elongate, slotted cutting surfaces and within the E are inner cutters adapted to cooperate with the elongate cutting surfaces to shear hair extending therethrough.

Novel drive means are provided which consists of an upwardly, bowed spring having its center connected to the oscillating drive lever of the shaver and its ends connected to the ends of the inner cutters so as to not only reciprocate the cutters in response to oscillation of the lever but also hold them yieldingly in engagement with the undersurface of the fixed cutter to provide for a proper cutting action.

The present invention provides comb means comprising a plurality of parallel grooves disposed adjacent the edge of the cutter portions to guide the hair into the cutter portions. The comb means in one form of the invention comprises a cap member having apertures therein to receive the cutter head and having the grooves formed in the edges of the apertures adjacent the cutting head to guide the hair therein.

In another form of the invention the casing is extended up adjacent the edge of the cutting portion and is provided with parallel grooves to guide the hair into the cutter portion and also a comb section is disposed between the cutting surfaces and provided with parallel grooves to guide the hair in from the inner edges of the cutter portions.

Also, the present invention provides end plates which are adapted to be positioned and held over the ends of the inner cutters to prevent hair being cut thereby from falling out of the cutter into the casing to clog up the motor or other driving parts. Preferably, the end plates are mounted on the ends of the driver spring and a portion of the spring is extended into engagement with the back of the plates to hold them in closed position.

Other features and advantages of the invention will be apparent from the specification and claims, when considered in connection with the drawings, in which:

FIGURE 1 shows a side view partly in section of the shaver of the present invention.

FIG. 2 is a top view of FIG. 1.

FIG. 3 is a longitudinal, sectional view of FIG. 1, taken along lines 33.

3,ddl,282 Patented Sept. 26, l fil ice FIG. 4 is a view similar to FIG. 3 showing another form of the invention.

FIG. 5 is a view similar to FIG. 1 showing the closures for the end of the cutters.

FIG. 6 is a perspective view of one of the end plates.

FIG. 7 is a perspective view of the driver spring.

FIG. 8 is a top view of the driver spring.

FIG. 9 is a sectional view of the outer cutter head.

FIG. 10 is a fragmentary sectional View showing the adjusting shim in position.

As shown in the drawings, a housing or body 10 has a cutting head 11 secured at one end thereof. While the cutting head may be a single head or may take other suitable shapes, it is herein illustrated as being a double head having longitudinally spaced cutting portions 12, 13 on the end surface, each provided with a plurality of transverse slots 14 and having inner cutters 15, 16 disposed below the slotted portions and adapted to be reciprocated to sever hairs extending through the slots.

In the herein illustrated form of the invention the stationary cutter .comprises an outer channel shell 17 of substantially E-shaped cross-section with the longitudinally extending cutter portions 12, 13 formed in the back or stem 11a of the E disposed on each side of the center bar 18 of the E. The bottom of the outer cutter is closed by means of a bridge member 19 extending thereacross and having a center rib 119a and having flanges 20, 21 extending along the inner walls of the outer legs or outside bars 22, 23 of the stationary cutter. The center bar of the E is, in effect, an inverted channel member facing the stem and having a base 18a and side legs 18b, 18c. The base 18a is secured to the rib on the bridge by means of screws 24 threaded into the bridge. This provides an initial assembly of the bridge and outer shell and holds the elements in place while the flanges of the bridge are secured to the outer legs of the E by any suitable means such as welding or the like to provide a rigid unit to slidably carry the inner cutters 15. The fixed cutter is held in the end of the casing by a suitable screw or the like.

In order to drive the inner cutters, a novel drive means is employed which comprises an upwardly bowed spring 26 having portions 27 at its ends upturned and adapted to engage the ends of the inner cutters. The center of the spring is provided with one or more apertures 28 to receive the oscillating driver lever 29 which projects from the end of the casing and is driven by any suitable motor, not shown. As will be seen in FIG. 1, the spring is disposed over the bridge of the fixed cutter and rests on the shoulder 29a on the lever and the ends are disposed in slots 30 in the ends of the inner cutters, the spring being tensioned when in this position so as to tend to apply pressure upwardly to the inner cutters and maintain its cutting surface in engagement with the undersurface of the cutter portion of the outer head to sever that hair extending therethrough.

With this construction of the cutter head and driver, it will be seen that the cutter head assembly can be readily assembled and the driver readily installed with the driving means for the inner cutter disposed below the bridge and below the outer cutter member so that no apertures are required in the inner and outer cutters through which hair may pass into the housing. This is particularly important where, as shown in FIGS. 5 through 8, closures 31 are provided for the ends of inner cutters which will trap the hair therein and prevent it from leaving through the ends of the cutter. This closure comprises end plates 32 shaped to fit the end of the inner cutter and having a hinged portion 33 at the bottom adapted to engage pintles 34 formed on extensions 35 on the ends of the driver spring as shown in FIG. 7. A center extension 36 of the driver spring is turned upwardly so as to engage the outside of the plate and normally urge it into engagement with the ends of the cutter to hold it in closed position and, yet will permit the end plates to be readily flexed outwardlywhen it is desired to empty the inner cutter.

A further feature of the invention resides in the provision of a novel comb construction which, in the form of the invention shown in FIGS. 1 to 3, comprises a cap 37 of plastic or the like material which is adapted to he slipped over the end of the shaver and surround the cutter head. The cap is provided with apertures 38, 39 adapted to receive the cutting portions on the cutting head in exposed position. The cap is provided along the longitudinal edges 40 of the apertures adjacent the cutting heads with parallel grooves 41 or notches adapted to guide the hair into the slots and the cutting head. The cap is held in position on the shaver by means of a spring clip 42 secured to the base 18a of the channelshaped center leg 18 of the head, which spring cooperates with notches 43 on the center bar of the cap. This will hold the combination comb and cap in predetermined relation to the cutter sections, yet will readily permit it to be snapped ofi when it is desired.

Furthermore, if it should be desired to adjust the position of the comb with respect to the cutter to efiect a closer or coarser shave, it is merely necessary to raise or lower the comb by inserting or removing shims 42a or other spacers between the spring clip 42 and the bottom of the channel 18a.

In the form of the invention shown in FIG. 4, the comb is provided by extending the side walls 44 of the casing up to a point adjacent the edges of the cutting surfaces and providing the parallel grooves 45 on their upper edge adjacent the edge of the cutting portion as shown in FIG. 4. Also, a center bar 46 having transverse grooves 47 is disposed in the channel-shaped center leg of the E and secured therein by means of the spring clip, as shown in FIG. 1.

Variations and modifications may be made within the scope of the claims and portions of the improvements may be used without others.

I claim:

1. A dry shaver having an elongate shearing head comprising a fixed outer cutter having an outer channel shell of E-shaped cross-section provided with longitudinally extending slotted cutter portions disposed on the stern of the E on each side of the center bar of the E, [a bridge connected to the center bar of the E and to the outside bars of the E to form a rigid unit, and a reciprocating inner cutter disposed in the space between the center bar and each of the end bars of the E and engaging the inner surface of said longitudinally extending cutter portions to sever hair extending through said slots, and means for reciprocating said inner cutters comprising an oscillating lever and means drivingly connecting the inner cutters to said lever to be driven thereby.

2. A dry shaver having an elongate shearing head comprising a fixed outer cutter having an outer channel shell of E-shaped cross-section provided with longitudinally extending, slotted cutter portions disposed on the stem of the E on each side of the center bar of the E, a flanged bridge having a rib connected to the center bar of the E with the flanges of the bridge connected to the outside bars of the E to form a rigid unit, and a reciprocating inner cutter disposed in the space between the center bar and connected bridge and each of the end bars of the E and engaging the inner surface of said longitudinally extending cutter portions to sever hair extending through said slots, and means for reciprocating said inner cutters comprising an oscillating lever and an elongate, upwardly bowed spring disposed below the bridge and having its ends drivingly connected to the inner cutter adjacent the ends thereof and the center portion connected to said lever to be driven thereby, said spring also urging said inner cutter into cutting relation with said outer cutter.

3. A dry shaver having an elongate shearing head comprising a fixed outer cutter-having an outer channel shell of E-shaped cross-section provided with longitudinallyextending, slotted cutter portions disposed on the stem of the E on each side of the center bar of the E, said center bar comprising a channel member opening on the stem of the E, a flanged bridge secured to the base of the channel member with the flanges connected to the outside bars of the E to form a rigid unit, and a reciprocating inner cutter disposed in the space between the center bar and each of the end bars of the E and engaging the inner'surface of said longitudinally extending cutter portions to sever hair extending through said slots,-and means for reciprocating said inner cutters comprising anoscillating lever and an elongate, upwardly bowed spring disposed below the bridge and having its ends drivingly disposed in slots in the undersurface of the inner cutter adjacent the ends thereof and the center portion connected to said lever to be driven thereby, said spring also, urging said inner cutter into cutting. relation with said outer cutter and carrying closure means for the ends of said inner cutter.

4. A dry shaver having an elongate shearing head comprising a fixed outer cutter and a reciprocating inner cutter, means for reciprocating said inner cutter comprising an oscillating lever and an elongate, upwardly bowed spring disposed below the fixed cutter and having its ends drivingly connected to the inner cutter adjacent the ends thereof and the center portion connected to said lever to be driven thereby, said spring also urging said inner cutter into cutting relation with said outer cutter, and closure means, for the ends of the inner cutter. carried by the ends of the bowed spring whereby hair is. trapped within the inner cutter.

5. A dry shaver having an elongate shearing head comprising a fixed outer cutter and a reciprocating inner cutter, means for reciprocating said inner cutter com.- prising an oscillating lever and an elongate, upwardly bowed spring disposed below the fixed cutter and having its ends drivingly connected to the inner cutter adjacent the ends thereof and the center portion connected to said lever to be driven thereby, said spring also urging said inner cutter into cutting relation with said outer cutter, and closure plates pivotally carried by the ends of the spring and normally urged by said spring into closed position overlying the ends of the inner cutter whereby hair is trapped within the inner cutter.

6. A dry shaver comprising a body having an elongate shearing head at one end having a pair of cutters dis-. posed in side by side spaced relation, a plastic cap adapted to be disposed over the shearing head and having a pair of openings therein terminating adjacent the longitudinal edges of the shearing head, the cap adja cent said longitudinal edges having parallel grooves therein to form a comb adapted to guide hair into said cutters, and means located between the cutters and cooperating with the cap for adjustingthe. position of the combs in various operative relations with respect to said cutters.

7. A dry shaver comprising a body having an elongate shearing head at one end having a pair of cutters disposed in side by side spaced relation, a plastic cap adapted to be disposed over the shearing head and having a pair of openings therein terminating adjacent the longitudinal edges of the shearing head, the cap adjacent said longitudinal edges having parallel grooves therein to form a comb adapted to guide hair into said cutters, and means including clip means adjustably mounted on the body and disposed between said cutters and engaging the portion of the cap between said cutters for adjustably connecting the cap to the body for holdingthecombs in various operative relations with the cutters.

8. A dry shaver having an elongate shearing head comprising a fixed outer cutter having an outer channel shell of E-shaped cross-section provided wtih longitudinally extending slotted cutter portions disposed on the stem of the E on each side of the center bar of the E', said center bar comprising a channel member opening on the stern of the E, a flanged bridge secured to the base of the channel member with the flanges connected to the outside bars of the E to form a rigid unit, and a reciprocating inner cutter disposed in the space between the center bar and each of the end bars of the E and engaging the inner surface of said longitudinally extending cutter portions to sever hair extending through said slots, means for reciprocating said inner cutters comprising an oscillating lever and means drivingly conmeeting the inner cutters to said lever to be driven thereby, and comb means having a portion disposed within the channel member and having parallel grooves adjacent said cutter portions to guide the hair into the slots.

9. A dry shaver having an elongate shearing head comprising a fixed outer cutter having an outer channel shell of E-shaped cross-section provided with longitudinally extending slotted cutter portions disposed on the stem of the E on each side of the center bar of the E, said center bar comprising a channel member opening on the stem of the E, a flanged bridge secured to the base of the channel member with the flanges connected to the outside bars of the E to form a rigid unit, and a reciprocating inner cutter disposed in the space between the center bar and each of the end bars of the E and engaging the inner surface of said longitudinally extending cutter portions to sever hair extending through said slots, means for reciprocating said inner cutters comprising an oscillating lever and means connecting the inner cutters to said lever to be driven thereby, spring clips mounted on the base of the channel, and comb means having a portion disposed within the channel member and engaging said spring clips to he held thereby and having parallel grooves adjacent said cutter portions to guide the hair into the slots.

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